” Russia’s Federal Security Service (FSB) said on Tuesday it had killed Moscow’s most wanted man, Islamist insurgency leader Doku Umarov, in a combat operation.

The news comes on the anniversary of the Boston Marathon bombings. There is evidence that one of the two young Chechen immigrants who executed the two deadly bombings at the marathon last year drew inspiration from Umarov, the 49-year-old leader of the regional terrorist network known as the Caucasus Emirate whose stated goal is to establish an Islamic state inside Russia.

” As a result of a combat operation, the activity of the head of the terrorist organization Caucasus Emirate, Umarov, was neutralized,” Alexander Bortnikov, the head of the FSB, told a meeting of Russia’s National Anti-Terrorism Committee (NAK).

His comments were distributed in a video clip by the NAK, which he oversees, one day after President Vladimir Putin delivered a speech to the FSB in which he said there must be no let-up in the fight against the militants.”

The issue that has become a concern for lawmakers is the fact that the Russian Federal Security Service (FSB) informed the FBI that Tamerlan Tsarnaev was a follower of radical Islam and a strong believer. The domestic intelligence security agency said that Tamerlan was preparing to leave the US and travel to Russia to join unspecified underground groups. The FBI investigated and found no known links. Tsarnaev did indeed return to Russia, but slipped below the radar of the FBI.